KB.15.15

record when the switch boots up and an "Accounting-Off" record when the switch reboots or

reloads. (Assume that Acct-Session-Id is configured for common.)

Figure 118 Example of accounting session operation with "start-stop" enabled

Configuring session blocking and interim updating options (Optional)

These optional parameters give you additional control over accounting data.

• Updates: In addition to using a Start-Stop or Stop-Only trigger, you can optionally

configure the switch to send periodic accounting record updates to a RADIUS server.

• Suppress: The switch can suppress accounting for an unknown user having no user name.

Syntax:

[no] aaa accounting update periodic < 1 - 525600 >

Sets the accounting update period for all accounting sessions on the switch.

The no form disables the update function and resets the value to zero.

Default: zero; disabled

Syntax:

[no] aaa accounting suppress null-username

Disables accounting for unknown users having no username.

Default: suppression disabled

To continue the example in Figure 117 (page 161), suppose you want the switch to:

• Send updates every 10 minutes on in-progress accounting sessions.

• Block accounting for unknown users (no username).

162 RADIUS Authentication, Authorization, and Accounting